Keystones — Bedrock
Five GCSE retrieval questions · 25 October 2021 · mathsvault.uk/keystones
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1. Number Adding whole numbers
Calculate: 42 + 23
Answer: 42 + 23 = 65 -
2. Algebra Substitution
If x = 8, find the value of 8x + 7
Answer: 71 -
3. Geometry Converting lengths
Convert 20cm to mm
Answer: 200mm -
4. Ratio Simplifying ratios
Simplify the ratio 12:14
Answer: 6:7 -
5. Statistics Mean
Find the mean of: 14, 7, 19, 2, 9
Answer: 10.2